Like: you have no sufficient rights to access ... the program you are just installing as administrator!..Or invalid drive E: while you are installing from DVD drive F: ...

Since installing from DVD station F: was terminated with error msg no access drive E: I thought to be smart and copied the install program to my USB drive 1T ADATA as drive E:This time the drive E: access error did not appear The install stopped in a crash anywayI was not surprised it is a Siematic install..After that my USB HD was damaged no access possibleWin Explorer freezes when trying to open ADATA CH94 (E:)that was now renamed to E: only

the message: drive E: has to be reformatted to use it..

That would mean complete data loss 350 GB of 931GBooops

Googeling I hit on using chkdsk /f e: in the commandbox it must be done i…